Frank Warmerdam <warmerdam <at> pobox.com> writes: > > > Julien, > I am not aware of any existing way to do this. I might be nice if an OGR VRT could apply something like this on the fly, but that doesn't exist currently.
I wonder if it could be done by using the Spatialite SQL dialect and ScaleCoordinates or ReflectCoordinates http://www.gaia-gis.it/gaia-sins/spatialite-sql-4.0.0.html#p15 This SQL is changing the sign of y-coordinates select ScaleCoords(geometry,1,-1) from polygons limit 1 And a quick test: Case 1 ====== ogrinfo -ro cities.shp -dialect SQLITE -sql "select GEOMETRY from cities" INFO: Open of `cities.shp' using driver `ESRI Shapefile' successful. ..... OGRFeature(SELECT):0 POINT (23.903381170918806 66.586845471705118) Case 2 ====== ogrinfo -ro cities.shp -dialect SQLITE -sql "select ScaleCoords(GEOMETRY,1,-1) from cities" INFO: Open of `cities.shp' using driver `ESRI Shapefile' successful. ..... OGRFeature(SELECT):0 POINT (23.903381170918806 -66.586845471705118) At least the query makes y coordinate negative but I am not sure if that was the meaning. -Jukka Rahkonen- _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
